This special socket spanner set in a three-piece design is specially designed for wheel assembly and disassembly. The plastic sleeves for the socket set enable clean work on the wheel bolts - without damaging the sensitive aluminium rims. The set includes socket spanners, also called sockets, with width across flats of 17, 19 and 21 mm. The different sizes are coloured yellow, blue and red in the special socket set. Thus you can quickly find the right socket spanner or the right socket nut. The socket spanner is 85 mm long. The special socket set is supplied in a practical plastic box.